namespace CSharpPro._1030;

public abstract class UserTest
{

    public abstract void M1();
    public abstract void M2();
    public abstract void M3();
}


public class UserTestImpl : UserTest
{

    public override void M1()
    {
        Console.WriteLine("子类实现的M1方法");
    }

 
    public override void M2()
    {
        Console.WriteLine("子类实现的M2方法");
    }

 
    public override void M3()
    {
        Console.WriteLine("子类实现的M3方法");
    }
}
